The peak viscosity occurs at the equilibrium point between swelling and polymer leaching (which cause viscosity to increase) and rupture and polymer alignment (which cause viscosity to decrease). The peak viscosity indicates the water-binding capacity of the starch or flour. It is obtained through the first derivative in a time range. It is measured in samples of cassava flour and starch. PV is the maximum viscosity during the heating or hold phase of the RVA test measured in centipoise.
Submitter
Creation Request